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S. No. 58/7A/1, Opp. Kheteshwar Ashram, Gokul Nagar, Katraj Kondhwa Road, Kondhwa Bk.
Pune - 411 048, India.
Tel. : +91 20 2696 2548, 2696 1311, +91 9404731535
Email:solarpv@vitronicscontrols.com
Solar MPPT Charge Controller
MPPT Charger display  
              Display of MPPT Charger
MPPT Charger

What is MPPT ?

MPPT or Maximum Power Point Tracking is algorithm that included in charge controllers used for extracting maximum available power from PV module under certain conditions. The voltage at which PV module can produce maximum power is called ‘maximum power point’ (or peak power voltage). Maximum power varies with solar radiation, ambient temperature and solar cell temperature.

How MPPT Works ?

The major principle of MPPT is to extract the maximum available power from PV module by making them operate at the most efficient voltage (maximum power point). That is to say: MPPT checks output of PV module, compares it to battery voltage then fixes what is the best power that PV module can produce to charge the battery and converts it to the best voltage to get maximum current into battery. It can also supply power to a DC load, which is connected directly to the battery.

By using Mppt With IPS any on line UPS/Inverter can be converted into Solar UPS

MPPT is most effective under these conditions:

  • Cold weather, cloudy or hazy days: Normally, PV module works better at cold temperatures and MPPT is utilized to extract maximum power available from them.
  • When battery is deeply discharged: MPPT can extract more current and charge the battery if the state of charge in the battery is lowers.

MPPT solar charge controller

A MPPT solar charge controller is the charge controller embedded with MPPT algorithm to maximize the amount of current going into the battery from PV module. MPPT is DC to DC converter which operates by taking DC input from PV module, changing it to AC and converting it back to a different DC voltage and current to exactly match the PV module to the battery.,

Examples of DC to DC converter are

  • Boost converter is power converter which DC input voltage is less than DC output voltage. That means PV input voltage is less than the battery voltage in system.
  • Buck converter is power converter which DC input voltage is greater than DC output voltage. That means PV input voltage is greater than the battery voltage in system.

MPPT algorithm can be applied to both of them depending on system design. Normally, for battery system voltage is equal or less than 48 V, buck converter is useful. On the other hand, if battery system voltage is greater than 48 V, boost converter should be chosen.

MPPT solar charge controllers are useful for off-grid solar power systems such as stand-alone solar power system, solar home system and solar water pump system, etc.

Main features of MPPT solar charge controller

  • In any applications which PV module is energy source, MPPT solar charge controller is used to correct for detecting the variations in the current-voltage characteristics of solar cell.
  • MPPT solar charge controller is necessary for any solar power systems need to extract maximum power from PV module; it forces PV module to operate at voltage close to maximum power point to draw maximum available power.
  • MPPT solar charge controller allows users to use PV module with a higher voltage output than operating voltage of battery system.
    For example, if PV module has to be placed far away from charge controller and battery, its wire size must be very large to reduce voltage drop. With a MPPT solar charge controller, users can wire PV module for 24 or 48 V (depending on charge controller and PV modules) and bring power into 12 or 24 V battery system. This means it reduces the wire size needed while retaining full output of PV module.
  • MPPT solar charge controller reduces complexity of system while output of system is high efficiency. Additionally, it can be applied to use with more energy sources. Since PV output power is used to control DC-DC converter directly.
  • MPPT solar charge controller can be applied to other renewable energy sources such as small water turbines, wind-power turbines, etc.

Models available

  1. From 96V-40A To 360V-60A
Model VCMP 24v 40 A VCMP 24v 60A VCMP 48 v 40 A VCMP 48  V 60A VCMP 96 v 25 A
Max Panel Wattage Wp 1000W 1500W 2000W 2500W 3000W
MAX Input PV for MPPT 160  V 160  V 160  V 160  V 190  V
Solar I/P Voltage Range for MPPT 30-160 V DC 30-160 V DC 60-160 V DC 60-160 V DC 120-190 V DC
MPPT Range 30-36V 30-36V 60-72V 30-72V 120-144V
OUTPUT SPECIFICATIONS
Battery Voltage 24V 24V 48V 48V 96V
Max Charging Voltage 28.4V 28.4V 57V 57V 115V
Max Charging Current 35A 50A 35A 45A 25A
PROTECTIONS
Lightning ( MOV ) YES YES YES YES YES
Panel Reverse Polarity YES YES YES YES YES
Batt Reverse Polarity
( by fuse )
YES YES YES YES YES
Short Circuit YES YES YES YES YES
Over Load YES YES YES YES YES
Cooling System FAN FAN FAN FAN FAN
INDICATIONS on LCD Display
Solar Voltage YES YES YES YES YES
Battery Voltage YES YES YES YES YES
Charging Current YES YES YES YES YES
Generation of Solar Energy in Watts YES YES YES YES YES
ENCLOSURE TYPE IP20
OPERATING TEMP 0 - 50C
* Above all model are parallable which can be connect in parallel to achieve higher wattage requirements.
* Default setting of MPPT Point : 16V For 12V Panel

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